The Screw,close Tolerance, cataloged under National Stock Number 5305-01-477-5764, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-477-5764 |
| Primary Part Number | TX1026V5-21A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Point Diameter | 0.469 INCHES NOMINAL IN |
| Fastener Length | 1.766 INCHES MINIMUM AND 1.796 INCHES MAXIMUM IN |
| Thread Length | 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.311 INCHES NOMINAL IN |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.623 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11827V5-21A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1026V5-21A PRIMARY | Hi-Shear Corporation (USA) |
| TX1026V5-21A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026V5-21A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1026V5-21A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026V5-21A | Meg Technologies, Inc. Dba Meg Technologies Inc (USA) |
| TX1026V5-21A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1026V5-21A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1169V5-21A | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TX1026V5-21A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-477-5764 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-477-5764 has 9 manufacturer part numbers on file: 11827V5-21A (Reid Products Inc. Dba Reid Products Inc), TX1026V5-21A (Hi-Shear Corporation), TX1026V5-21A (Howmet Global Fastening Systems Inc), TX1026V5-21A (Fairchild Fasteners Europe - Vsd Gmbh), TX1026V5-21A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for TX1026V5-21A: Point Diameter: 0.469 INCHES NOMINAL IN; Fastener Length: 1.766 INCHES MINIMUM AND 1.796 INCHES MAXIMUM IN; Thread Length: 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN; Spline Major Diameter: 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.